Build a solid understanding of reactants used and products produced in a chemical reaction with a lesson that begins with a basic stoichiometry problem and advances to questions involving limiting reactants and percent yields. 

Concepts

stoichiometry, unit conversion, chemical equations, limiting reactants, percent yield

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Additional Tags

science

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Instructional Ideas

• Show the video for the first question of each type; pause the video on the second question and allow learners to attempt the question before showing the worked out solution
• Use as a resource for pupils to check their work after they complete each problem

Classroom Considerations

• Requires Internet access to view the video
• The lesson does not include explanation of the vocabulary, so provide a list of the vocabulary words and their definitions

Pros

• Resource provides thorough explanations with all work shown, allowing pupils to see the entire process
• Explains two problems of each type so young mathematicians can get more practice with each one

Cons

• The writing is not always legible, which may lead to misunderstanding